How to clean oil stains on kitchen wall

　　After cooking for a long time, there will always be a layer of nasty oil stains on the kitchen walls, especially under the range hood, where there is always a thick layer. But don’t worry, the editor will teach you a trick:

　　First sprinkle some water on the wall with oil stains, and then sprinkle a layer of flour. After 3 to 5 minutes, when the flour is almost absorbed, gently wipe the flour with a cloth, and the oil stains will be wiped off together.